baber/WOPTO huggingface dataset:
Patent GB-240786-A (GB)
Title: Improvements relating to the obtaining of fibrous materials from the stalks of hemp and like plants
IPC: D01B1/14
Filed: 1925-04-29
Abstract: 240,786. Fabricord, Inc. Sept. 30, 1924, [Convention date]. Breaking and scutching apparatus.-The fibrous portion 11 of hemp and like plant stalks is separated from the woody portion 13 by loosening the fibrous portion at one end of the unsplit stalk and causing the loosened fibre and woody stalk to be deflected sharply as the stalk is moved forward. The free end has imparted to it a succession of quick, sharp, blows which causes vibration of the whole stalk. The stalk is dragged forward by pulling the loosened fibre ends. The stalks 24, Fig. 6, are fed over a' plate 25 and are loosely held by the. weight of a pivoted plate 28. The woody portion is broken as the stalk is bent over the edge of the plate 25 by blades 20 on a rapidly rotating cylinder 39. The blades have sharp striking edges. The fibrous portion 24<1> is seized and drawn forward by a pair of rollers 30, 31. The roller 30 is star-shaped and the roller 31 is smooth and is pressed up against its companion by springs.
Patent GB-257859-A (GB)
Title: Improvements relating to sliding doors, shelves and drawers for book-cases and otherarticles of furniture
IPC: E06B3/50
Filed: 1925-04-28
Abstract: 257,859. Eustace, R. April 28, 1926. Cabinets; drawers.-Doors. shelves, or drawers which are mounted to slide in cabinets or casings are guided by pinions c at the ends of a shaft f transversely mounted on the sliding article, the pinions gearing with racks e and moving in grooves d cut in the, sides of the .casing. The invention is illustrated as applied - to a sectional bookcase.
Patent GB-792885-A (GB)
Title: Mechanical means for sensing a value represented by the deflection of the pointer ofa measuring instrument, more especially in a calorimeter having a rotating integrating mechanism
IPC: G01K17/12
Filed: 1956-04-12
Abstract: 792,885. Indicating and integrating apparatus. LANDIS & GYR AKT.-GES. April 12, 1956 [April 13, 1955], No. 11206/56. Class 106(4). Mechanism for sensing a value represented by the deflection of the pointer 27 of a measuring instrument comprises a sensing lever 48, a rotating pawl-carrier 43 having a pawl 45 acting periodically on a ratchet wheel 46 and a resetting lever 56 arranged so that in each rotation the pawl 45 and carrier 43 pivot the two levers 48, 56 from inoperative positions, moving the sensing lever 48 until it contacts the pointer 27 to lock the pawl and moving the re-setting lever 56 through the full potential range of the lever 48 whereafter it falls off the pawl-carrier 43 due to its eccentric mounting relative to the ratchet wheel 46 and returns the lever 48 to inoperative position under the force of a spring 59. As applied to integrating apparatus, the pawl-carrier 43 is rotated at constant speed by a synchronous motor 44 and the ratchet wheel 46 drives a counter which thus registers the integral with respect to time of a variable whose instantaneous value is indicated by the pointer 27 against an edgewise scale 32 secured to a bowed member 30. A second bowed member 33 is spring-urged against the first to clamp the pointer 27 during integration, the reaction of the readily rotatable, light lever 48 against the clamped pointer 27 causing the pawl 45 to engage the ratchet wheel 46 and drive it until released by a stud 55 on a lever 51, which can be set against heavy friction at the zero position of the pointer 27. A plate 11 carrying all the mechanism has two flat bars 12, 13 for securing the apparatus in its housing. As applied to a calorimeter, temperature difference and quantity of heat carrier may be multiplied electrically to give a voltage proportional to heat energy, which may be fed to the measuring instrument 26, integration giving heat quantity over a period.
Patent GB-1458492-A (GB)
Title: Thermocompression-type apparatus for desalting saline water
IPC: B01D1/28
Filed: 1975-03-18
Abstract: 1458492 Desalination apparatus SOC ITALIANA RESINE SIR SpA 18 March 1975 [25 March 1974] 11221/75 Heading B1B A thermocompression desalting apparatus for saline water comprises an evaporator section (12), including a heating chamber (42) and a bundle of evaporator tubes (40) crossinig the chamber; means for circulating saline water through the tubes of the bundle, the said means including a separating chamber (26) in which the steam produced in the evaporator section is separated from the non-evaporated saline water; a compressor (102) arranged to suck steam from the separating chamber and to deliver it at an increased pressure to the heating chamber as heating fluid for the evaporator tubes; and means (72/28) for recovering the condensate from the heating chamber; the said apparatus being characterized in that: the evaporator tubes extend vertically above the separating chamber and have their lower ends opening into the latter through a lower header plate (36); the upper ends of the evaporator tubes extend through an upper header plate (38) into a plenum chamber (44) overlying the latter, said plenum chamber 'being included in said means for circulating saline water and being arranged to provide a pool of said water submerging said upper ends of the evaporator tubes; and each of said upper ends having means (see Fig. 4) therein arranged to receive saline water from the pool and to discharge it in the form of a falling film on the inner surface of its respective evaporator tube.
Patent GB-1141733-A (GB)
Title: Mechanisms for driving tapes
IPC: G11B15/28
Filed: 1967-03-10
Abstract: 1,141,733. Change speed gear. PHILCOFORD CORP. 10 March, 1967 [16 March, 1966], No. 11455/67. Headings F2C and F2D. [Also in Division G5] A two-speed unidirectional drive of a tapeengaging capstan 10, particularly in a cartridgetype tape player, comprises an electric motor 20 having two pulleys 18, 42 fast therewith, a flywheel 15 coaxial with, and rotatable with respect to, the capstan, and two belts 17, 41 respectively engageable with the pulley 18 and the flywheel and with the pulley 42 and, directly, the capstan, the arrangement being such that low (playback) speed capstan drive is via the belt 17 and the flywheel, and high (fast wind) speed capstan drive is via the belt 41. The tape is driven by the capstan 10 in conjunction with a pressure roller (44), and is removed from the centre of a reel (R) over a guide (G), directed over guides 46, 47 past a recording and reproducing pick-up head 12, and returned to the outside of the reel. As shown, the capstan is also axially movable with respect to the flywheel and a clutch between the capstan and the flywheel comprises recesses in the capstan engageable by a pin 33 fast in a shaft 14 keyed fast with the flywheel. Gravity clutch engagement of the capstan may be assisted by a small permanent magnet 48. A control rod 23, manually depressable against a spring (37), has fast thereon a wedge 27 engageable with the underside of the capstan and an arm 39 supporting an idler roller 40 engageable with the belt 41. In the position shown, with the rod 23 released, the clutch pin 33 is engaged by the capstan for playback drive via belt 17 and the flywheel and the belt 41 slips. When the rod 23 is depressed the wedge 27 upwardly cams the capstan out of engagement with the pin 33 and the idler 40 tensions the belt 41 for fast wind drive therethrough to the capstan. Fast wind may be terminated manually or automatically by sensing means not shown or described. In Figs. 4, 5 (not shown) an automatic clutch between the flywheel and the capstan comprises a pawl (52) pivoted on the capstan and engageable with a ratchet-wheel fast with the flywheel. The pawl is normally engaged for playback, whereas for fast wind, when the tension of the belt 41 is increased, after some ratcheting the pawl disengages centrifugally. In Fig. 6 (not shown), the automatic clutch comprises a helical coil spring engageable with, but not secured to, drums respectively fast with the flywheel and the capstan.
Patent GB-820951-A (GB)
Title: Fuel control for combustion chambers
Inventor: LEEPER CHARLES KENDAL
IPC: F02K3/00
Filed: 1956-04-16
Abstract: 820,951. Jet propulsion plant. UNITED AIRCRAFT CORPORATION. April 16, 1956, No. 11481/56. Class 110 (3). [Also in Groups XI and XXIX] A fuel control for a combustion chamber 10 of a ram jet, comprises a pressure fuel conduit 14 to the chamber, a regulator 18 systematically and continuously varying fuel flow in increasing and decreasing amounts above zero, means 20, 46 sensing the combustion chamber pressure in timed relation with the fuel flow variation, and means responsive to the pressure sensing means for varying the amount of fuel flowing through the regulator. An electric or constant speed motor 16 rotates a butterfly fuel valve 18 and a cylindrical valve 20 having passages 30, 32 at right angles for alternately connecting a passage 24, tuned to eliminate noise and transient pressures, to either side of a spring-loaded piston 46 which actuates a valve 50 controlling the supply of fuel at 52 to either side of a spring-loaded piston 56 operating a fuel valve, the fuel escaping from either side via restrictions 60, 62. At C in Fig. 2, where increased fuel flow produces increased burner pressure, the fuel flow oscillations at 14 will produce burner pressure oscillations at 24, the amplitude being proportional @o the slope of the curve in Fig. 2. At D in Fig. 2, where increase in fuel flow produces decreased burner pressure, the burner pressure oscillations are 180 degrees out of phase. Thus, when the burner pressure corresponds to point C, the pressure in 24, 30, 70, Fig. 1, will be greater than the pressure in 24, 32, 72; piston 46 will move valve 50 to the right and piston 56 will open the fuel valve to increase the fuel flown to correspond with the maximum pressure at point, E. If fuel flow |increases |beyond the point E, the pressure differential across piston 48 is reversed and the fuel valve closes. The piston 46 integrates pressure increases and the spring 48 may bereplaced by another loading device, eg. electronic, if a point of equilibrium other than E is required.
Patent GB-1043067-A (GB)
Title: Portable belt type conveyor-elevator
Inventor: MASSEY RALPH NATHAN
IPC: B65G21/00
Filed: 1965-03-18
Abstract: 1,043,067. Endless conveyers. SPEED KING MANUFACTURING CO. Inc. March 18, 1965, No. 11524/65. Heading B8A. A conveyer-elevator suitable for comminuted material &c. has a conveyer belt 16 of which the upper conveying reach is supported in a tube 10 and forms an arcuate trough for the material. A feed hopper 14 has a bottom plate 15 which is complementally arcuate to fit inside the tube 10. An adjustable hood 18, Fig. 1 (not shown), varies the angle of discharge of the material. The belt is guided by idler pulleys 36 and hangers 37. Belt driving and tensioning.-A unit 27  includes tensioning pulleys 30, 31 which are vertically adjustable by screws 34, 35 controlling bearing blocks 32, 33. A pulley 28 is power driven.
Patent GB-813282-A (GB)
Title: Abrasive compositions
IPC: B24D3/28
Filed: 1956-04-16
Abstract: Abrasive masses are prepared by mixing granular abrasive materials with a paste-like dispersion of vinyl chloride polymers in plasticisers, forming the masses to the desired size and shape in moulds, and heating to convert the pastes to the gelled state. The polymer component may be polyvinyl chloride optionally mixed with up to 25 per cent, based on the weight of polyvinyl chloride, of a vinyl chloridevinylidene chloride copolymer.  Specified plasticisers are tritolyl phosphate and dibutyl phthalate. Specified abrasives are alumina and silicon carbide.  The compositions may contain stabilizers, e.g. basic lead carbonate, lead stearate, cadmium-barium laurate and dibutyl tin dilaurate.
Patent GB-846079-A (GB)
Title: Improvements in and relating to manufacture of unbleached and semi-bleached sulphite pulp
IPC: D21C9/10
Filed: 1959-04-06
Abstract: To prevent or remove red discoloration of unbleached or semi-bleached sulphite pulp, hydrazine, dimethyl hydrazine, hydroxylamine, or potassium or sodium borohydride is added, as by spraying the dried or wet sheets of pulp or by adding it at the head-box of a paper-making machine.  The pulp may be subsequently peroxide-bleached.  Examples mention 0,05 to 3,0% of the additives.
Patent GB-689823-A (GB)
Title: Improvements relating to welding electrodes
IPC: B23K35/365
Filed: 1951-05-17
Abstract: In the welding electrode claimed in the parent Specification having a nickel base alloy core and a covering containing 20-45 per cent of cryolite and 15-35 per cent calcium carbonate the calcium carbonate content is changed to 10-30 per cent and barium fluoride is included. In a further modification the electrode with a core containing 75-85 per cent nickel, 10-16 per cent chromium and 4-10 per cent iron has a covering of 10-30 per cent calcium carbonate, 9-25 per cent barium fluoride, 10-50 per cent cryolite, 1.5-16 per cent niobium (as ferro-niobium) 02-4.8 per cent titanium (as ferro-titanium) and from 2-5 per cent bentonite and up to 25 per cent iron as the ferro-alloys.  An embodiment described has the following composition. Core. - Carbon 0.06 per cent; manganese 0.25 per cent; sulphur 0.008 per cent; silicon 0.2 per cent; copper 0.2 per cent; magnesium 0.03 per cent; iron 6.5 per cent; chrome 14.0 per cent; nickel balance. Covering. - Calcium carbonate 16 per cent; barium fluoride 23 per cent; cryolite 22 per cent; ferro-50 niobium 30 per cent; ferro-40 titanium 6 per cent; bentonite 3 per cent, dextrine 3 per cent; water Specification 611,802 is referred to.
Patent GB-558245-A (GB)
Title: Improvements in and relating to magneto-electric ignition apparatus
IPC: H04B15/02
Filed: 1942-08-18
Abstract: 558,245. Magnetos. BRITISH THOMSONHOUSTON CO., Ltd., and FREEMAN, G. A. Aug. 18. 1942, No. 11604. [Class 35] The insulating collector moulding 2 is spigoted into the casing 1 of the magneto and is adjustably secured by a cupped ring 5 engaging a flange thereon so that it can be fixed in any position through an angle of 360 degrees in a plane at right angles to the collector brush. Where screening is required, the moulding is secured inside a metal cover 3 to which the metal braided cable is secured by a sleeve 8 and nut 9.
Patent GB-888409-A (GB)
Title: Improvements in or relating to reserpine and its derivatives
Filed: 1958-04-11
Abstract: The invention comprises the perchlorate of 3,4-dehydroreserpine and a process for the preparation of reserpine by deacetylating 18b -acetoxy - 11,17a  - dimethoxy - 3 - oxo - 16b  - methoxycarbonyl - 2,3 - seco - 20a  - yohimbane or subjecting the lactone of 18b -hydroxy-11,17a -dimethoxy - 3 - oxo - 16b  - carboxy - 2,3 - seco - 20a  - yohimbane to methanolysis, condensing the 18b  - hydroxy - 11,17a  - dimethoxy - 3 - oxo - 16b - methoxycarbonyl - 2,3 - seco - 20a  - yohimbane obtained in each case with a 3,4,5-trimethoxybenzoyl halide in the presence of a tertiary organic base, cyclising the resulting 18-ester by reaction with a dehydrating agent (e.g. POCl3, SOCl2) to give 3,4-dehydroreserpine and reducing the latter to reserpine, with the proviso that the starting material is either dextrorotatory in the case of the lactam or laevorotatory in the case of the lactone, or that racemic material is used and resolution is effected at a later stage.  Detailed examples are given. Specifications 868,475, 868,477, 888,407, 888,408, 888,410, 888,411, 888,412, 888,413, 888,414 and 888,427 are referred to.
Patent GB-959557-A (GB)
Title: Improvements in fuel cells
Inventor: TANTRAM ANTHONY DESMOND SHAND
IPC: H01M4/86
Filed: 1960-04-01
Abstract: 959,557. Fuel cells. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 30, 1961 [April 1, 1960], No. 11679/60. Heading H1B. A fuel cell electrode has two sets of interleaved grooves 3, 4 in a support member carrying a porous layer of electrode material, fresh gas being supplied to one set of grooves, and spent gas being extracted from the others. A bipolar electrode structure may be made by using a support member having sets of interleaved grooves on both surfaces and electrode layers on each face. A biporous active layer may . be used and the support plate may be of metal or sintered ceramic.
Patent GB-793312-A (GB)
Title: Improvements in or relating to the measurement of bore diameters
IPC: G01B5/08
Filed: 1955-04-22
Abstract: 793,312. Electric tests. WAYNE KERR LABORATORIES, Ltd., and CALVERT, R. May 29, 1956 [April 22, 1955], No. 11737/55. Class 37. The bore of a tube is measured by means of a device consisting of a probe support carrying a transverse probe member which extends diametrically across the bore, one end of the transverse member contacting one side of the bore while the other end carries a conductive member, the capacity between this conductive member and the other side of the bore being an indication of the bore of the tube. As shown, tubular steel member 12 is slidably mounted in metal sleeve 13 which is coated on its outer surface with insulating material and carries transverse metal head 32. The head is mounted on member 12 by leafsprings 20. Tube 13 and its plastic coating are slotted so that a glass ball 31 is pressed by the action of the springs against the lower side of the bore 10 to be gauged. A contact 28 is mounted centrally by insulation 21 in the other end of the transverse member, the metal 32 of which acts as a guard ring. Plastics layer 14 fits closely in the bore of the tube to prevent " slop " of the head. Plastic handles 15, 16 enable the holder 12 to be moved along the bore relatively to the tubes 13, 14. Control member 28 is connected to the terminal member of coaxial cable 33 the outside of which is connected to the guard ring 32 and the inner surface of the bore 11. Fig. 3 shows the circuit arrangement. The secondary of transformer 40 has two windings both connected to line 44 and constituting the ratio arms of a bridge circuit. The other arms are constituted by the condenser 50 formed between member 26 and the bore of the tube and a standard variable condenser 49. Unbalance in the bridge is detected by a transformer 46 connected across the diagonal and a detector 48. Capacitor 49 is adjusted to bring the detector to a null indication when the setting of capacitor 49 indicates the bore of the tube. The inner conductor of cable 30 may be connected to an adjustable tap on the transformer or capacitor 49 may be connected to an adjustable tap.
Patent GB-117759-A (GB)
IPC: B43L13/04
Abstract: 117,759. Marston, H. T. Nov. 14, 1917. Draughting-machines.-In an arrangement for guiding a ruler for movement parallel to itself over a blackboard &c. and of the kind in which two flexible non-extensible cords or wires 5 Fig. 10, extending each from one corner of the board around a roller 3 or pin at the adjacent end of the rule, thence over a similar roller 3<a> or pin at the other end of the ruler, and thence to the diagonally opposite corner of the base, the cord is tensioned by means of pins 17, Fig. 7, access to which is afforded by removing the corner plates 21. A finger recess 20 is provided in the lower edge of the ruler and a recess for chalk provided in the frame of the blackboard.
Patent GB-117779-A (GB)
IPC: B23Q1/28
Abstract: 117,779. Kearns, J. R. C., and Kearns & Co., H. W. Feb. 12, 1918. Work-holders; rotary tables.-In a work-table for a boring &c. machine of the kind in which the work is secured to a turn-table mounted on a traversing table, the turn-table A is locked to the traversing table B by means of slidable members C engaging slots a<1>, b<1> in the two tables. The middle portion of the upper flanges of the members C is removed, so that when the members are withdrawn by rack and pinion c', so that one of the ends c enters a circular slot a in the under surface of the plate A, the plate A may be rotated on the plate B. Locating-pieces E bear on the members C so as to locate the table A accurately with respect to the table B.
Patent GB-476539-A (GB)
Title: Improvements in or relating to circuit-arrangements for regulating the voltage at the terminals of an electric device
IPC: G05F1/52
Filed: 1937-04-26
Abstract: 476,539. Automatic control systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 26, 1937, No. 11895. Convention date, April 28, 1936. [Class 38 (iv)] Electromotive force.-An arrangement for maintaining the D.C. voltage across terminals 4, 5 constant comprises a triode valve 1 in series with the supply 2, 3, the grid of which is connected to the anode of an amplifier valve 6 responsive to the voltage to be controlled. The anode of the valve 6 is connected to a tapping on a resistance 7, 8 shunting the control valve 1 and its cathode is connected to the negative main of the supply. The grid of the valve 6 may be connected to the positive main through a bias battery 9 or through the battery 9 to a tapping on a further resistance shunting the valve 1. In such an arrangement, Fig. 3, the further shunting resistance 10, 12 may have its tapping point connected to the negative main through a further resistance and this connection may, in a modification, be made on the supply side of a resistance in series in the negative lead so as to introduce a current responsive component in the regulation. If the valve 6 is a screen grid valve its screen electrode is connected to a tap on a resistance shunted across the output terminals and its control grid is connected to a tap on a resistance in series with the battery or other auxiliary supply source 9 across the output terminals 4, 5. The valve 1 may be constituted by a number of valves in parallel.
Patent GB-439033-A (GB)
Title: Improvements in or relating to seat cushions, particularly for the seats of motor vehicles
IPC: B60N2/70
Filed: 1935-04-23
Abstract: 439,033. Securing cushions in position. DUROSE, H. V., 1355, Bristol Road South, Birmingham. April 23, 1935, No. 11903/34. [Class 52 (iv)] A seat-back cushion 7 for motor vehicle seats is provided with side tabs 8<a> which pass around and are held in frictional engagement with the sides of the seat back by connecting members 9 which may be of elastic nature. The tabs are wider at the parts connected to the cushion than at the inner ends. The connecting means 9 may be detachably secured to a centre tab 8 by means of press-buttons, and an extension 10 of the tab 8 may be provided with a series of alternative press-button fastenings.
Patent GB-369437-A (GB)
Title: Improvements in and relating to pilot-valve controlled slide valves preferably for use with feed water regulators
IPC: F22D5/10
Filed: 1931-04-22
Abstract: 369,437. Fluid-actuated valves. TORRE, E., 8, Via Roma, Genoa, Italy. April. 22, 1931, No. 11965. Addition to 342,578. [Class 135.] Valves controlled by pilot or relay valves.-A boiler feed regulator of the kind described in the parent Specification has the auxiliary valve in the form of an open-ended tube I adapted to co-operate with a sleeve B screwed to the main valve, said sleeve being formed at its lower end with an enlarged chamber having radial ports U communicating with the space below the actuating piston. The main piston valve is formed without projections as a surface of revolution and controls communication between passages E, S, C, leading to the delivery side of the condenser suction pump, to the hot well and to the vacuum space of the condenser respectively. The upper piston has ports M, N leading to the outlet S and the lower piston has an internal flange Y co-operating with a similar flange X on the sleeve B to form a slot in which a head U<1> on a rod P is mounted. The control float is pivoted to the rod P and the float arm L is coupled to the auxiliary valve by a link T. The space below the actuating piston is connected to the inlet E through a pipe O controlled by a throttle valve K. An indicator Z is coupled to the piston by a rod V.